相关实验视频

Updated: Jun 24, 2025

Detection of a Circulating MicroRNA Custom Panel in Patients with Metastatic Colorectal Cancer

Detection of a Circulating MicroRNA Custom Panel in Patients with Metastatic Colorectal Cancer

Published on: March 14, 2019

结直肠癌中的LNA-i-miR-221活性:一个反向翻译研究

Asad Ali¹, Katia Grillone¹, Serena Ascrizzi¹

¹Department of Experimental and Clinical Medicine, University Magna Græcia of Catanzaro, 88100 Catanzaro, Italy.

Molecular therapy. Nucleic acids

|June 13, 2024

概括

抑制microRNA-221 (miR-221) 在结直肠癌 (CRC) 模型中显示出抗癌作用. 这种方法重新激活TP53通路,表明TP53状态可以预测治疗反应.

科学领域:

在瘤学瘤学.
分子生物学分子生物学
遗传学遗传学是一个

背景情况:

结肠直肠癌 (CRC) 是全球癌症死亡的主要原因.
微RNA (miRNA) 失调,特别是升高的miR-221,与CRC进展和预后不佳有关.
早期的临床数据促使人们对治疗CRC的miR-221抑制进行了调查.

研究的目的:

评估静音miR-221在结直肠癌中的治疗潜力.
阐明miR-221在CRC中的作用背后的分子机制.
为了确定预测对miR-221抑制反应的生物标志物.

主要方法:

利用结直肠癌的临床前体外和体内模型.
使用LNA-i-miR-221 (一种miR-221抑制剂) 来评估抗瘤活性.
研究了miR-221的直接点及其在TP53亡途径中的作用.
分析了TP53状态和抑制对治疗疗效的影响.

主要成果:

LNA-i-miR-221显著降低了CRC细胞活力和瘤生长,同时诱导了亡.
发现miR-221直接向TP53BP2,在抑制后导致TP53BP2和TP53INP1的表达增加.
LNA-i-miR-221的抗瘤作用在TP53野生型细胞中最为明显,并且随着TP53抑制而减弱.
在miR-221抑制后观察到TP53BP2和TP53INP1的过度表达.

结论:

miR-221沉默通过恢复TP53亡途径,显示出显著的抗CRC活性.
TP53BP2和TP53INP1是miR-221的直接目标,它们调解了它的瘤抑制作用.
在CRC中,TP53功能可以作为预测性生物标志物,用于预测患者对miR-221沉默疗法的反应.

关键词:

在CRC中,CRC就是CRC.在LNA-i-miR-22121中使用.MT:寡核酸:治疗方法和应用.对于RNA疗法来说,它是非常重要的.结肠直肠癌是什么意思在 miR-22121 系统中,这是一个小RNARNA.在 miRNA 抑制过程中,在 miRNA 疗法中.微RNAs 是一个微型RNA.非编码RNA治疗药物.

更多相关视频

Portal Vein Injection of Colorectal Cancer Organoids to Study the Liver Metastasis Stroma

Portal Vein Injection of Colorectal Cancer Organoids to Study the Liver Metastasis Stroma

Published on: September 3, 2021

In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice

In Vivo Inhibition of MicroRNA to Decrease Tumor Growth in Mice

Published on: August 23, 2019

相关概念视频

lncRNA - Long Non-coding RNAs

lncRNA - Long Non-coding RNAs

In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...